<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Benyahia, Kaddour</style></author><author><style face="normal" font="default" size="100%">Fayçal Djeffal</style></author><author><style face="normal" font="default" size="100%">Hichem Ferhati</style></author><author><style face="normal" font="default" size="100%">Bendjerad, Adel</style></author><author><style face="normal" font="default" size="100%">Benhaya Abdelhamid</style></author><author><style face="normal" font="default" size="100%">A Saidi</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Self-powered photodetector with improved and broadband multispectral photoresponsivity based on ZnO-ZnS composite</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Alloys and Compounds </style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2021</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/abs/pii/S0925838820346053</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">859</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p id=&quot;sp0045&quot; style=&quot;text-align: justify;&quot;&gt;
	Cost-effective multispectral&amp;nbsp;photodetectors&amp;nbsp;(&lt;em&gt;PDs&lt;/em&gt;) exhibiting a high&amp;nbsp;&lt;em&gt;UV&lt;/em&gt;-&lt;em&gt;Visible&lt;/em&gt;-&lt;em&gt;NIR&lt;/em&gt;&amp;nbsp;photoresponse offer an avenue for developing environmental monitoring devices, imaging sensors, object discrimination, and optical links. However,&amp;nbsp;&lt;em&gt;PDs&lt;/em&gt;&amp;nbsp;based on a single semiconductor as light-sensitive layer are unable to provide broadband photodetection properties. In this work, a new&amp;nbsp;&lt;em&gt;PD&lt;/em&gt;&amp;nbsp;device based on&amp;nbsp;&lt;em&gt;ZnO-ZnS&lt;/em&gt;&amp;nbsp;Microstructured Composite (&lt;em&gt;MC&lt;/em&gt;) which achieves a high&amp;nbsp;&lt;em&gt;UV&lt;/em&gt;-&lt;em&gt;V&lt;/em&gt;isible-&lt;em&gt;NIR&lt;/em&gt;&amp;nbsp;photoresponse is demonstrated. The&amp;nbsp;&lt;em&gt;ZnO-ZnS MC&lt;/em&gt;&amp;nbsp;is elaborated by combining vacuum thermal evaporation technique and a suitable annealing process. Scanning Electron Microscopy (&lt;em&gt;SEM&lt;/em&gt;), energy-dispersive&amp;nbsp;&lt;em&gt;X&lt;/em&gt;-ray spectroscopy (&lt;em&gt;EDS&lt;/em&gt;),&amp;nbsp;&lt;em&gt;X&lt;/em&gt;-ray diffraction (&lt;em&gt;XRD&lt;/em&gt;), and&amp;nbsp;&lt;em&gt;UV&lt;/em&gt;-&lt;em&gt;V&lt;/em&gt;is-&lt;em&gt;NIR&lt;/em&gt;&amp;nbsp;spectroscopy were used to elucidate the morphological, structural and optical properties of the prepared sample. It was demonstrated that the&amp;nbsp;&lt;em&gt;ZnO-ZnS MC&lt;/em&gt;&amp;nbsp;can be useful to enhance the visible absorbance efficiency by promoting efficient light-scattering effects. It is revealed that the prepared&amp;nbsp;&lt;em&gt;UV-Vis-NIR PD&lt;/em&gt;&amp;nbsp;offers a low dark current of&amp;nbsp;&lt;em&gt;5&amp;nbsp;nA&lt;/em&gt;, a high&amp;nbsp;&lt;em&gt;I&lt;/em&gt;&lt;sub&gt;&lt;em&gt;ON&lt;/em&gt;&lt;/sub&gt;&lt;em&gt;/I&lt;/em&gt;&lt;sub&gt;&lt;em&gt;OFF&lt;/em&gt;&lt;/sub&gt;&amp;nbsp;ratio of&amp;nbsp;&lt;em&gt;78&amp;nbsp;dB&lt;/em&gt;&amp;nbsp;and an enhanced responsivity in&amp;nbsp;&lt;em&gt;UV&lt;/em&gt;, visible and&amp;nbsp;&lt;em&gt;NIR&lt;/em&gt;&amp;nbsp;ranges. The proposed multispectral&amp;nbsp;&lt;em&gt;PD&lt;/em&gt;&amp;nbsp;demonstrates a high&amp;nbsp;&lt;em&gt;I&lt;/em&gt;&lt;sub&gt;&lt;em&gt;ON&lt;/em&gt;&lt;/sub&gt;&lt;em&gt;/I&lt;/em&gt;&lt;sub&gt;&lt;em&gt;OFF&lt;/em&gt;&lt;/sub&gt;&amp;nbsp;current ratio under self-powered working regime. Therefore, the proposed&amp;nbsp;&lt;em&gt;ZnO-ZnS MC&lt;/em&gt;&amp;nbsp;is believed to provide new insights in developing efficient, self-powered and low-cost multispectral&amp;nbsp;&lt;em&gt;PDs&lt;/em&gt;&amp;nbsp;for high-performance optoelectronic systems.
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